Question

zeros ou raizes f(x)x-8x+15

Answer 1

x-8x+15
-7x= -15 (-1)
7x=15
x= 15/7
o zero da raiz é 15/7

Answer 2

f(x) = x - 8x + 15
f(x) = -7x + 15
- 7x + 15 = 0
- 7x = - 15 . ( -1)
7x = 15
x = $\frac{15}{7}$